CVE-2026-6559
Wavlink WL-WN579A3 login.cgi sub_401F80 cross site scripting
- State
- Published
- Severity
- 5.3 Medium
- Published
- Apr 19, 2026
- Updated
- Apr 20, 2026
- Reserved
- Apr 18, 2026
Description
A weakness has been identified in Wavlink WL-WN579A3 220323. This affects the function sub_401F80 of the file /cgi-bin/login.cgi. This manipulation of the argument Hostname causes cross site scripting. Remote exploitation of the attack is possible. Upgrading the affected component is recommended. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X | VulDB |
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C | VulDB |
| 3.0 | 4.3 Medium | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C | VulDB |
| 2.0 | 5.0 Medium | AV:N/AC:L/Au:N/C:N/I:P/A:N/E:ND/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
WL-WN579A3Wavlink |
|
References
- VDB-358196 | Wavlink WL-WN579A3 login.cgi sub_401F80 cross site scriptingvdb-entrytechnical-description
- VDB-358196 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #785303 | Wavlink WL-WN579A3 V220323 Cross Site Scriptingthird-party-advisory
- https://github.com/Litengzheng/vul_db/blob/main/WL-WN579A3/vul_16/README.mdbroken-link
- https://dl.wavlink.com/firmware/RD/WINSTAR_WN579A3-A-2026-03-10-94f93d4-WO-mt7628-squashfs-sysupgrade.binpatch
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